Finding the Fourth Proportional to 21,169,037.36, 29,229,726.66 and 16,266,531.80
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Solution
The fourth proportional to 21,169,037.36, 29,229,726.66 and 16,266,531.80 is: 22,460,458.17
Step by Step Solution
- Step 1: Write the proportion equation
21,169,037.36 : 29,229,726.66 = 16,266,531.80 : x - Step 2: Convert to fraction form
21,169,037.36/29,229,726.66 = 16,266,531.80/x - Step 3: Cross multiply
21,169,037.36x = 29,229,726.66 × 16,266,531.80 - Step 4: Simplify right side
21,169,037.36x = 475,466,278,220,197.81 - Step 5: Solve for x
x = 475,466,278,220,197.81/21,169,037.36 - Step 6: Final answer
x = 22,460,458.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.